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[C2] Speedometer vs odometer

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Old Apr 11, 2025 | 10:07 AM
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Default Speedometer vs odometer

I never thought it possible but a supposedly rebuilt instrument cluster appears to be having an issue. The speedometer is reading correctly but the odometer is way off.....like 500%
Anybody ever experience this?
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Old Apr 11, 2025 | 10:13 AM
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Are you saying you drive ten miles and the odometer shows some extreme number of miles? Dennis
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Old Apr 11, 2025 | 11:04 AM
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yes
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Old Apr 11, 2025 | 11:49 AM
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I'd like to know the answer as well. My speed is perfectly accurate, but the odo rack up miles 2 to 1. Trip meter is the same as odo. Every mile I drive registers 2 on the odo.
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Old Apr 11, 2025 | 04:12 PM
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My odo registers about 2/3 the actual miles driven while speedo is +/- 10% slow. Add me to the list of those who would like to know whats going on
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Old Apr 11, 2025 | 05:25 PM
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Here is something interesting I found searching through the forum

https://www.corvetteforum.com/forums...r-dummies.html
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Old Apr 11, 2025 | 05:26 PM
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I had mine be rebuilt/recalibrated last Fall (CSof Md-West), and no issues…

well, I did need to change the gear in the transmission (5-speed swap)…

but otherwise my Speedo and Odo seem to be in sink . Got about 190 miles on it since the rebuild. Everything was set to zero, after testing it came to me with 30 miles on the odometer, but the tripodometer was reset to zero…

still a 30 mph difference.





the Speedo is magnetic, but the odometer is gear driven off the Speedo, so not sure how it could be off much?
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Old Apr 11, 2025 | 08:20 PM
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How do you confirm the speed and distance?
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Old Apr 11, 2025 | 08:53 PM
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Originally Posted by DSR
How do you confirm the speed and distance?
GPS on your phone and mile markers on the highway
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Old Apr 12, 2025 | 10:58 AM
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My problem is bad too. Had cluster restored and now when I reset the trip odometer for every tenth of a mile on the trio odometer it puts a miles on the total miles driven. fortunately this problem only lasts for 1.3 miles then both the trip odometer and total miles odometer quit working.
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